Under Armour UA Renegate Unisex Laptop Sports Backpack Book Bag-Geometric Pathern, 18" Small X 14" X 4" 100% cotton Ultra-functional school backpack/daypack with 600-denier construction Single main compartment and front pocket with organizer for smaller items Stores 2 to 3 textbooks, binder, spiral notebooks, calculator, cell phone, and more Comfortable straight-cut, padded shoulder straps and 2/3-padded back panel 1,551.2 cubic inches of storage; measures 13 x 16.7 x 8.5 inches (W x H x D)